18756306006856 has 32 divisors (see below), whose sum is σ = 39300907272480. Its totient is φ = 8317652329600.

The previous prime is 18756306006853. The next prime is 18756306006877. The reversal of 18756306006856 is 65860060365781.

It is a junction number, because it is equal to n+sod(n) for n = 18756306006794 and 18756306006803.

It is not an unprimeable number, because it can be changed into a prime (18756306006853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2599262746 + ... + 2599269961.

It is an arithmetic number, because the mean of its divisors is an integer number (1228153352265).

Almost surely, 2^{18756306006856} is an apocalyptic number.

It is an amenable number.

18756306006856 is an abundant number, since it is smaller than the sum of its proper divisors (20544601265624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18756306006856 is a wasteful number, since it uses less digits than its factorization.

18756306006856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5198532765 (or 5198532761 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 61.

The spelling of 18756306006856 in words is "eighteen trillion, seven hundred fifty-six billion, three hundred six million, six thousand, eight hundred fifty-six".